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|
{ config, lib, pkgs, utils, ... }:
with utils;
with systemdUtils.unitOptions;
with lib;
let
cfg = config.systemd;
systemd = cfg.package;
inherit (systemdUtils.lib)
generateUnits
targetToUnit
serviceToUnit
socketToUnit
timerToUnit
pathToUnit
mountToUnit
automountToUnit
sliceToUnit;
upstreamSystemUnits =
[ # Targets.
"basic.target"
"sysinit.target"
"sockets.target"
"exit.target"
"graphical.target"
"multi-user.target"
"network.target"
"network-pre.target"
"network-online.target"
"nss-lookup.target"
"nss-user-lookup.target"
"time-sync.target"
] ++ optionals cfg.package.withCryptsetup [
"cryptsetup.target"
"cryptsetup-pre.target"
"remote-cryptsetup.target"
] ++ [
"sigpwr.target"
"timers.target"
"paths.target"
"rpcbind.target"
# Rescue mode.
"rescue.target"
"rescue.service"
# Udev.
"systemd-udevd-control.socket"
"systemd-udevd-kernel.socket"
"systemd-udevd.service"
"systemd-udev-settle.service"
] ++ (optional (!config.boot.isContainer) "systemd-udev-trigger.service") ++ [
# hwdb.bin is managed by NixOS
# "systemd-hwdb-update.service"
# Consoles.
"getty.target"
"getty-pre.target"
"getty@.service"
"serial-getty@.service"
"console-getty.service"
"container-getty@.service"
"systemd-vconsole-setup.service"
# Hardware (started by udev when a relevant device is plugged in).
"sound.target"
"bluetooth.target"
"printer.target"
"smartcard.target"
# Kernel module loading.
"systemd-modules-load.service"
"kmod-static-nodes.service"
"modprobe@.service"
# Filesystems.
"systemd-fsck@.service"
"systemd-fsck-root.service"
"systemd-remount-fs.service"
"systemd-pstore.service"
"local-fs.target"
"local-fs-pre.target"
"remote-fs.target"
"remote-fs-pre.target"
"swap.target"
"dev-hugepages.mount"
"dev-mqueue.mount"
"sys-fs-fuse-connections.mount"
] ++ (optional (!config.boot.isContainer) "sys-kernel-config.mount") ++ [
"sys-kernel-debug.mount"
# Maintaining state across reboots.
"systemd-random-seed.service"
"systemd-backlight@.service"
"systemd-rfkill.service"
"systemd-rfkill.socket"
# Hibernate / suspend.
"hibernate.target"
"suspend.target"
"suspend-then-hibernate.target"
"sleep.target"
"hybrid-sleep.target"
"systemd-hibernate.service"
"systemd-hybrid-sleep.service"
"systemd-suspend.service"
"systemd-suspend-then-hibernate.service"
# Reboot stuff.
"reboot.target"
"systemd-reboot.service"
"poweroff.target"
"systemd-poweroff.service"
"halt.target"
"systemd-halt.service"
"shutdown.target"
"umount.target"
"final.target"
"kexec.target"
"systemd-kexec.service"
"systemd-update-utmp.service"
# Password entry.
"systemd-ask-password-console.path"
"systemd-ask-password-console.service"
"systemd-ask-password-wall.path"
"systemd-ask-password-wall.service"
# Slices / containers.
"slices.target"
] ++ optionals cfg.package.withImportd [
"systemd-importd.service"
] ++ optionals cfg.package.withMachined [
"machine.slice"
"machines.target"
"systemd-machined.service"
] ++ [
"systemd-nspawn@.service"
# Misc.
"systemd-sysctl.service"
] ++ optionals cfg.package.withTimedated [
"dbus-org.freedesktop.timedate1.service"
"systemd-timedated.service"
] ++ optionals cfg.package.withLocaled [
"dbus-org.freedesktop.locale1.service"
"systemd-localed.service"
] ++ optionals cfg.package.withHostnamed [
"dbus-org.freedesktop.hostname1.service"
"systemd-hostnamed.service"
] ++ [
"systemd-exit.service"
"systemd-update-done.service"
] ++ cfg.additionalUpstreamSystemUnits;
upstreamSystemWants =
[ "sysinit.target.wants"
"sockets.target.wants"
"local-fs.target.wants"
"multi-user.target.wants"
"timers.target.wants"
];
proxy_env = config.networking.proxy.envVars;
in
{
###### interface
options = {
systemd.package = mkOption {
default = pkgs.systemd;
defaultText = literalExpression "pkgs.systemd";
type = types.package;
description = "The systemd package.";
};
systemd.units = mkOption {
description = "Definition of systemd units.";
default = {};
type = systemdUtils.types.units;
};
systemd.packages = mkOption {
default = [];
type = types.listOf types.package;
example = literalExpression "[ pkgs.systemd-cryptsetup-generator ]";
description = "Packages providing systemd units and hooks.";
};
systemd.targets = mkOption {
default = {};
type = systemdUtils.types.targets;
description = "Definition of systemd target units.";
};
systemd.services = mkOption {
default = {};
type = systemdUtils.types.services;
description = "Definition of systemd service units.";
};
systemd.sockets = mkOption {
default = {};
type = systemdUtils.types.sockets;
description = "Definition of systemd socket units.";
};
systemd.timers = mkOption {
default = {};
type = systemdUtils.types.timers;
description = "Definition of systemd timer units.";
};
systemd.paths = mkOption {
default = {};
type = systemdUtils.types.paths;
description = "Definition of systemd path units.";
};
systemd.mounts = mkOption {
default = [];
type = systemdUtils.types.mounts;
description = ''
Definition of systemd mount units.
This is a list instead of an attrSet, because systemd mandates the names to be derived from
the 'where' attribute.
'';
};
systemd.automounts = mkOption {
default = [];
type = systemdUtils.types.automounts;
description = ''
Definition of systemd automount units.
This is a list instead of an attrSet, because systemd mandates the names to be derived from
the 'where' attribute.
'';
};
systemd.slices = mkOption {
default = {};
type = systemdUtils.types.slices;
description = "Definition of slice configurations.";
};
systemd.generators = mkOption {
type = types.attrsOf types.path;
default = {};
example = { systemd-gpt-auto-generator = "/dev/null"; };
description = ''
Definition of systemd generators.
For each <literal>NAME = VALUE</literal> pair of the attrSet, a link is generated from
<literal>/etc/systemd/system-generators/NAME</literal> to <literal>VALUE</literal>.
'';
};
systemd.shutdown = mkOption {
type = types.attrsOf types.path;
default = {};
description = ''
Definition of systemd shutdown executables.
For each <literal>NAME = VALUE</literal> pair of the attrSet, a link is generated from
<literal>/etc/systemd/system-shutdown/NAME</literal> to <literal>VALUE</literal>.
'';
};
systemd.defaultUnit = mkOption {
default = "multi-user.target";
type = types.str;
description = "Default unit started when the system boots.";
};
systemd.ctrlAltDelUnit = mkOption {
default = "reboot.target";
type = types.str;
example = "poweroff.target";
description = ''
Target that should be started when Ctrl-Alt-Delete is pressed.
'';
};
systemd.globalEnvironment = mkOption {
type = with types; attrsOf (nullOr (oneOf [ str path package ]));
default = {};
example = { TZ = "CET"; };
description = ''
Environment variables passed to <emphasis>all</emphasis> systemd units.
'';
};
systemd.managerEnvironment = mkOption {
type = with types; attrsOf (nullOr (oneOf [ str path package ]));
default = {};
example = { SYSTEMD_LOG_LEVEL = "debug"; };
description = ''
Environment variables of PID 1. These variables are
<emphasis>not</emphasis> passed to started units.
'';
};
systemd.enableCgroupAccounting = mkOption {
default = true;
type = types.bool;
description = ''
Whether to enable cgroup accounting.
'';
};
systemd.enableUnifiedCgroupHierarchy = mkOption {
default = true;
type = types.bool;
description = ''
Whether to enable the unified cgroup hierarchy (cgroupsv2).
'';
};
systemd.extraConfig = mkOption {
default = "";
type = types.lines;
example = "DefaultLimitCORE=infinity";
description = ''
Extra config options for systemd. See man systemd-system.conf for
available options.
'';
};
systemd.sleep.extraConfig = mkOption {
default = "";
type = types.lines;
example = "HibernateDelaySec=1h";
description = ''
Extra config options for systemd sleep state logic.
See sleep.conf.d(5) man page for available options.
'';
};
systemd.additionalUpstreamSystemUnits = mkOption {
default = [ ];
type = types.listOf types.str;
example = [ "debug-shell.service" "systemd-quotacheck.service" ];
description = ''
Additional units shipped with systemd that shall be enabled.
'';
};
systemd.suppressedSystemUnits = mkOption {
default = [ ];
type = types.listOf types.str;
example = [ "systemd-backlight@.service" ];
description = ''
A list of units to skip when generating system systemd configuration directory. This has
priority over upstream units, <option>systemd.units</option>, and
<option>systemd.additionalUpstreamSystemUnits</option>. The main purpose of this is to
prevent a upstream systemd unit from being added to the initrd with any modifications made to it
by other NixOS modules.
'';
};
systemd.watchdog.device = mkOption {
type = types.nullOr types.path;
default = null;
example = "/dev/watchdog";
description = ''
The path to a hardware watchdog device which will be managed by systemd.
If not specified, systemd will default to /dev/watchdog.
'';
};
systemd.watchdog.runtimeTime = mkOption {
type = types.nullOr types.str;
default = null;
example = "30s";
description = ''
The amount of time which can elapse before a watchdog hardware device
will automatically reboot the system. Valid time units include "ms",
"s", "min", "h", "d", and "w".
'';
};
systemd.watchdog.rebootTime = mkOption {
type = types.nullOr types.str;
default = null;
example =
|